Method and system for determining a singularity free...

Details Method and system for determining a singularity free... Method and system for determining a singularity free...

2008-05-13

2008-05-13

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Spacecraft

Attitude control

Reexamination Certificate

active

07370833

ABSTRACT:
A method for avoiding singularities in the movement of a set of collinear CMGs in an array of CMGs in a spacecraft is provided. First, a command to adjust an orientation of the spacecraft is received. Then, the momentum needed from the set of collinear CMGs is determined. A dynamic control that determines a momentum path and avoids singularities by rotating the singularities out of the momentum path is used and a required gimbal movement for each of the CMGs in the set of collinear CMGs from the momentum path is calculated.

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